I have ISPConfig running on a couple of servers. We are now beginning to move some low-volume customers onto these servers for testing. Everything seems to be working nicely, but I would like to make one change. As it stands now, to make an IMAP or POP3S connection users have to use logins such as "web101_user" instead of "user@domain". What do I have to change to allow the latter form of login? I am not sure which release of ISPConfig I have. We downloaded and installed it a couple of months ago.